Mold



Sept. 18, 1928.

. .1. P. URBAN HOLD Filed May 14, 1927 s sheets-sheet 1 1 Sept. 18, 1928 J. P. URBAN HOLD Filed May 14, 1927 I 5 Sheets-Sheet Sept. 18, 1928.

J. P. URBAN MOLD 3 Sheets-Sheet 3 Filed May 14, 1927 anoen loz 52 M g 4/4 Patented Sept. 18, 1928.

UNITED STATES PATENT UF'FI C'E.

JOSEPH P. URBAN, or DETROIT, MICHIGAN, Ass eivon To DET OIT CONCRETE RE- CEPTACLE COMPANY, or DETROIT, MICHIGAN, A CORPORATION or MICHIGAN.

MOLD.

Applicationfiled May 14, 1927; Serial No. 191;490.

The present invention pertains to a mold for making concrete garbage receptacles and the like and is similar in character to the device shown in my Patent No. 1,598,665, SeptemberZ, 1926.

The receptacle made by the mold is a boxlike structure having an inlet inthe top thereof and ala'teraloutlet. The receptacleisintended' to be placediin a yard in such position that the outlet will be accessible from an'alley alongside the yard;

The mold described herein diflfers from that shown in my co-pending application in thatit is constructed for making a simpler anda lighter receptacle. Accordingly, modifications in the structure of the mold'are required, and these as well as other simplifications in the" mold constructionare embodied in th'e'device of the present invention; I

One of the features of this invention is that a heating element is positioned to heat the interior of the core forming the cavity of the receptacle.'- Heating in this manner'hastensthe drying of theconcrete poured into the mold. The products of combustion delivered to the core arepermitted to escape through a second core which formsthe lateral outlet opening. 1 c

This second core issupported in themold in a manner whichis novel" in the present in vention. The front outer'wa'll" of the mold comprises an angle'piece'fixed to thebase; and above this piece the second 'core' isse cured tothe first core. 'The'front wall of the outer mold is completed by a' frame surroundingtlie'secon'dcore and resting on the angle piece. Novel locking" means between the angle piece and-'i'rameare provided.

The invention isfully disclosed in the following description' and in the accompanying drawings, in which r I Figure is a it'r'ont elevation of" the mold;

Fig. 2is a'perspective viewfof-the receptacle cast iii-the mold; 7

Fig. 3 is a vertical section of the receptacle;

Fig. 41 isa'vertica1 section-of'the complete mold; g v

Fig; 5 is a'perspective View of one of the elements of the mold; 3

Fig. 6 is a perspective viewof 'a'nother eles m'ent;

Fig. 7 is a horizontal section of the com plete mold;

Fig. 8 is a perspective view of the outlet forming core of the mold; and

Fig. 9-is a perspective view showing one ofthejoints between the outer wall sections of'the mold.

Reference to these views will now be made by" use of like'charact'ers which are employed to designate corresponding parts throughout.

The mold comprising the subject matteroi' this inventionrests upona truck 1 having an inclined platform 2 constituting the base of the mold. The platform carries near its edges longitudinalangleirons 3 (Figure 7) each of which is provided with an outwardly extending. keeper l. The side members 5 of the outer wall of the mold are placed verticallyxupon the platform 2 with their-lower edges abutting the angle members 8. The

sections 5 are provided each with a pivoted latch 6 adapted for locking inthe corresponding' keeper 4. Y

The rear: section 7 of the outerwall is aplane member provided at its lower edge with an angleiron 8 (Figure 4) and'set upon the base 2 at an incline to the vertical. The rearv edges of the'sections Bareslopedior engagement with the lateral edges or the-member 7 To the base 2 are pivoted latches 9 which aid in supporting the Wall 7 The members 5 and 7 are further joined alongtheir edges, near the'top andbottom thereof, by. locking devices of the type shown in Figure 9. Each such device comprises a notched bar. 10 fixed to one of the members and a'pivoted notched arm 11 carried by the adjacent member. These parts are inter-. locked at their notches, and the pivoted member isdurther secured to the fixed member by an-angle piece 12 hinged on-the pivoted member and extending beneath the fixed member.

The'front wall consists in part ofanangular s'ection'13' carrying at its lower edge an angle bar 14 lying transversely of the base 2 the section 13 is provided at its'ends with fixed notched'members 1O cooperating with pivoted locking members 10 provided on the lateral wall sections 5; v V

Within the outer wall structure is provided a space-dcore whereby there is-formed adouble walledspace correspondingftothe dimen sions' of the main wall 16 of thereceptacle.

g to form a figure of square cross-section spaced The core comprises four right angular members 17, 18, 19 and 20 placed upon the base from the outer wall assembly. One of the longitudinal edges of each member carries a strip 21 overlapping the contiguous edge of the adjacent'member. At the remaining edge of each right angular member is secured a strip 22 lying adjacent the strip 21 of the ad- ';acent member. The strips 22 are provided with offset keepers 23 which receive fingers 24 fixed onthe strips22. These locking devices are obviously applied to the inner surface of the core members and the assembly is made by erecting the several sections in sue a manner that the fingers 24 enter the keepers 23. The sides of the core sections are strengthened by braces 25 as shown in Figures 4 and 7. For the purpose of obtaining a ixed position of the core upon the base 2, the transverse sides of the core sections are projected downwardly through slots 26 cut trans-L versely through the base. The projected lower edges of the core sections are formed with apertures 30 into which are passed pins 31 extending also through apertures 32 in the edges of the truck.

At the forward s1de of the mold is provided a core construction for forming the outlet 33 of the receptacle. This construction includes an outlet core member 34 in the form of a sleeve having the configuration of the inner wall of the outlet 33. One end of this memher is provided with inner angle irons 35 which are abutted against the front wall of the main core assembly and clamped thereto by latches 36 pivoted on said front wall. The inner walls of the member 34 are provided further with intermediate angle bars 37 which may be hammered or tapped to release the section from the casting in dismantling.

The front section of the outer Wall assem-.

bly is completed by a rectangular frame 38 surrounding the forward end of the core34. This frame is of such size that its outer edges engage the foremost edges of the members 5 and 13 as may be seen in Figures 4 and 7. The vertical edges of'the frame are provided with notched keepers 39 for receiving latches 4O pivoted on the wallsections 5 near the forward edges thereof. The lower side of the frame has slots 41 which accommodate notched keepers 42 projecting forwardly from the upper wall of the angular section13; and latches 43 for engagement in the keepers are pivoted to the member 38 directly above the slots 41. i

The upper edge of the frame 38 lines up with the upper edges of the members 5 and 7 as indicated by the'numeral 44'. This construction permits the formation of a flat receptacle base 45 having a beveled edge 46.

v The space above the core 34 in the mold provides a wedge shaped section 47 beneath the outlet of the receptacle. The angle piece 13 r forms the angle 48 between the rear lateral 50 in the top of the receptacle for the attachinent of a hinge to carry a cover for the outlet.

Similar pins 51 are passed from the other side of the section 13 into the forward wall of the main core for forming apertures 52 in the rearwall of the receptacle for the attach ment of hinges to carry a cover for the top of the receptacle. A bolt 53 is passed through the upper side of the frame 38from the inner surface thereof andis retained in the casting, below the outlet, as a lock for the cover over the outlet. 1

Beneath the base 2 of the mold is sup orted a gas burner 54 on a bracket 55. The ase 2 is formed witlran opening 56 directly above the burner so that the flame issuing from the latter may enter the main core without interference and without burning the base. The frontwall of the main core has a number of openings 57 to permit escape of the products of combustion through the outlet core 34 to.

the atmosphere. The heat generated by .the burner hastens the drying of the concrete which has been poured into the mold.

Although aspecific embodiment of the invention has been illustrated and described, it

will be understood that various alterations in i the detailsof construction may be madewithout departin from the scope of theinvention.

as indicated y the appended claims.

-What I claimis j .1. A mold comprising a base, an outer wall A mounted thereon, a core within said wall and spaced therefrom, said base having an'aperture therethrough, andaheating element supported by the base at said aperture.v

2. A mold comprising a base, an outerwall mounted thereon, a core within said wall. and spaced therefrom, an outlet-forming core between said first named core andouter wall, said first named core having apertures leading to said second core, and a heating element effective in said first core. v

3. A mold comprising a base, an outer wall mounted thereon, a core within saidwall and spaced therefrom, an 'outletrforming core betweensaid first named core and outer wall,

said firstnamed core having apertures leading to said second core, said basehaving an aperture therethrough, and a heating element at said aperture.

4. A mold compr sing base, an outer wall mounted thereon,a core within said wall and spaced therefrom, an outlet-forming core between said first named core and outer wall, one side of said outer wall comprising an an gle piece, and a frame surrounding said outlet-forming core and engagmg said angle piece.

5. A mold comprising abase, an outer wall mounted thereon, a core Within said wall and spaced therefrom, an outlet-forming core between said first named core and outer wall,

one side of said outer wall comprising an angle piece resting on said base and disposed beneath said outlet-forming core, and a frame surrounding said outlet-forming core and secured to said angle piece.

6. A mold comprising a base, an outer wall mounted thereon, a core within said wall and spaced therefrom, an outlet-forming core between said first named core and outer wall, one side of said outer wall comprising an angle piece, a frame surrounding said outletforming core and engaging said angle piece, locking elements carried by said angle piece and adapted to pass through said frame, and

tween said first named core and outer Wall, I

one side of said outer wall comprising an angle piece resting on said base and disposed beneath said outlet-forming core, a frame surrounding said outlet-forming core and secured to said tangle piece, locking elementsv carried by said angle piece and adapted to pass through said frame, and cooperating locking elements carried by said frame.

In testimony whereof I affix my signature JOSEPH P. URBAN. 7 

